Lock



W. E. NIE

March 11 1924.

LOCK

Filed Aug. 8,

mento/o E'. Nz'

Patented Mar. ll, 1924.

WILLAM E. NIE, 0F FORT V FIR/Mil, ONTARIO, CANADA..

LOCK.

Application filed August 8, 1921.

To all Awhomy may concern.'

Be it known that IV, WILLIAM Nm, a subject of Great Britain, residing at Fort Erie, Ontario, Canada, have invented certain new and useful Improvements in Locks, of which the following is a specification.

The invention relates to improvements in lock structures and more particularly to. a lock of the keyless type.

One of the principal objects of the invention. is to provide a lock having novel means embodied therein for engaging and releasing the locking shackle in the operation of the lock, numbered discs being employed to provide suitable combination means for the lock.

The further object of the invention is to provide a lock that is simple in construction, strong and dura-ble, and which it is believed may be manufactured at a reasonably low price.

Various other objects and advantages of the invention will become apparent during the continuance of the following description.

ln thc drawings:

Figure 1 is a view in side elevation of the improved lock.

Figure 2 is an end view thereof, showing the combination discs.

Figure 3 the vertical longitudinal cross section of the lock casing, showing the arrangement of the locking parts.

Figure et is a cross sectional view of the lock as taken on line 4 4: of Figure 3.

The casing of the lock is made in two halfsections 1() and 11 bolted or riveted together, as at 12, for convenience in assembling the moveable p rts on the interior of the casing. At one end, the casing is provided with a bore 13 extending parallel with the end of the casing and enlarged at its outer terminal as shown at 14, this bore providing the shackle-hole of the casing and the enlarged end providing the necessary clearance for the swinging end of the shackle bolt as will be hereinafter described.

The shackle bolt 15 is preferably arched and U-shaped as shown in Figure 3 and is pivotally supported at one end on bearing pin 16 extending across the top of the casing below opening 17 in which the pivoted end of the shackle is inserted. y The other end of the shackle is barbed as shown at 18 and this barbed end enters the bore 13 Serial No. 490,789.

where it is adapted to be engaged by the notched upper end of the shackle retaining member 19. This retaining member may be a cylindrical block movable longitudinally of bore 13 and normally positioned in the bore with its notched end adjacent the enlarged terminal la and engaging shackle cnd 18. This position is maintained by coil spring 2O located at the bottom of the bore and tensioned to exert pressure outwardly against the retaining member' 19. rFhe retaining member is freely slidable within the bore and consequently as long as it has its notched end at the enlarged terminal of the bore, the shackle is free to be swung outwardly of the casing, since the upward swinging movement of the shackle in the are of a circle tends to draw the barbed end 18 outwardly of the notch of the retaining member and upwardly therefrom, the enlarged portion of the hole providing the necessary clearance for the swinging shackle-end.

Surrounding the bore of the casing, intermediate the ends is a disc housing 21 in which are arranged a plurality of discs 22 each of which may be numbered on its periphery from one to Zero and these numbers may be used in forming the combination controlling the operation of the lock. Fach disc is provided with a center opening through which the retaining 'membelr 19 passes and the center opening is provided with a notch 23 engageable with lug means provided on the retaining member. ln order for the retaining member to be movable outwardly of the casing, under pressure of spring E20, for releasing the shackle it is necessary that the notches of each disc opening be in alignment with the lugs of .the retaining member in order to provide passage for the latter. Any suitable combination may be selected for controlling the manipulation of the disc to obtain this alignment. 1t will thus be seen that when the retaining member is at the outermost end of the bore, shackle bolt 15 may be swung outwardly from the casing but when the retaining member is depressed inwardly of the casing, the barbed end of the shackle is firmly retained between the notched end of the retaining member and the opposite wall of the bore.

From the foregoing it is believed that the advantages and novel features oi' the invention Will be readily understood and that further description Will be unnecessary.

1What is Vclaimed is:

A lock. comprising a casing of tivo half sections bolted or otherwise fastened together and presenting complementary pore tions co-acting to provide a bore extending parallel with the casing adjacent one end and a disc housing surrounding the bore intermediate the ends of the latter, said bore opening outwardly of the top face of the casing and the said casing having another and a smaller-opening in the top face thereof arranged near the end opposite from Y that adjacent which the opening of the bore is located, a bearing pin mounted in the casing and extending crosswise of the latter immediately below the said other and smaller opening, a U-shaped shackle bolt having relatively long and short arms, the short arm of which extends thru the said smaller opening and is fulcrumed on the said bearing pin for swinging movement While the long arm is adapted to enter the opening of the said bore, said long arm having a barbed end and the said opening ofv the bore being enlargedto provide clearance for the said barbed end, a shackle-retaining` member consisting of a cylindrical block movable longitudinally of the vbore and having a notched end, a spring for normally positioning said block in the bore with its notched end adjacent the enlarged opening of the bore and in position to be engaged by the barbed end of the said shackle bolt, lugs on the said shackle-retaining member, and a plurality of numbered discs arranged in the said disc housing and provided, respectively, With a central opening thru which the said shackle-retaining member extends, each of said discs having its central opening notched to provide clearance for the lugs of the said retaining member only When the notches of all the discs are in alignment with the said lugs.

In testimony whereofv I aiiix my signa.- ture.

WILL-IAM E. NIE. 

